Ice packs made from plastic bags or cloth quickly get damp and messy as the ice inside melts. Disposable diapers, on the other hand, stay cool to the touch and absorb the condensation.

Parent Hacks suggests pouring ice in between the layers of the diaper, folding the top over, and then securing the pack with the tabs on the sides. You wind up with a comfortable ice pack that stays dry and clean thanks to the absorbent lining. Sure it may seem a little gross, but if you have newborns or toddlers, it's worth a try, and definitely cleaner than a bag of frozen vegetables from the freezer. Photo by Nate Ritter.